# 1. 添加cmake版本说明
cmake_minimum_required(VERSION 3.1.3)
# 2. 声明工程名称
project(asr-server)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)  # 强制要求 C++17，不存在则报错
set(CMAKE_CXX_EXTENSIONS OFF)  # 禁用编译器扩展（如 gnu++17）

set(CMAKE_LIBRARY_PATH ${CMAKE_LIBRARY_PATH} /usr/local/lib)

set(target "asrServer")
set(test_client "asrClient")

# 3. 检测并生成proto框架代码
#   1. 添加所需的proto映射代码文件名称
set(proto_path ${CMAKE_CURRENT_SOURCE_DIR}/../proto)
set(proto_files speech.proto)
#   2. 检测框架代码文件是否已经生成
set(proto_h "")
set(proto_cc "")
set(proto_srcs "")
foreach(proto_file ${proto_files})
#   3. 如果没有生成，则预定义生成指令 -- 用于在构建项目之间先生成框架代码
    string(REPLACE ".proto" ".pb.h" proto_h ${proto_file})
    string(REPLACE ".proto" ".pb.cc" proto_cc ${proto_file})
    if (NOT EXISTS ${CMAKE_CURRENT_BINARY_DIR}${proto_cc})
        add_custom_command(
            PRE_BUILD
            COMMAND protoc
            ARGS --cpp_out=${CMAKE_CURRENT_BINARY_DIR} 
                 --experimental_allow_proto3_optional
                 -I ${proto_path} ${proto_file}
            DEPENDS ${proto_path}/${proto_file}
            OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${proto_cc} 
                   ${CMAKE_CURRENT_BINARY_DIR}/${proto_h}
            COMMENT "生成proto框架代码文件:" ${CMAKE_CURRENT_BINARY_DIR}/${proto_cc} 
                                            ${CMAKE_CURRENT_BINARY_DIR}/${proto_h}
        )
    endif()
#   4. 将所有生成的框架源码文件名称保存起来 student-proto.cxx classes-proto.cxx
    list(APPEND proto_srcs ${CMAKE_CURRENT_BINARY_DIR}/${proto_cc} 
                           ${CMAKE_CURRENT_BINARY_DIR}/${proto_h})
endforeach()

# 4. 获取源码目录下的所有源码文件
set(server_src_files "")
aux_source_directory(${CMAKE_CURRENT_SOURCE_DIR}/source server_src_files)

set(test_files "")
aux_source_directory(${CMAKE_CURRENT_SOURCE_DIR}/test test_files)

# 5. 声明目标及依赖
set(common_path ${CMAKE_CURRENT_SOURCE_DIR}/../common)
list(APPEND server_src_files ${common_path}/log.cpp 
                      ${common_path}/etcd.cpp 
                      ${common_path}/asr.cpp)


set(client_src_files "")
list(APPEND client_src_files ${common_path}/log.cpp 
                      ${common_path}/etcd.cpp 
                      ${common_path}/asr.cpp
                      ${common_path}/channel.cpp 
                      ${CMAKE_CURRENT_SOURCE_DIR}/source/asr_server.cpp
                      ${test_files})


# 7. 设置需要连接的库
add_executable(${target} ${server_src_files} ${proto_srcs})
target_link_libraries(${target} -lbrpc -lprotobuf -lgflags -lssl -lcrypto 
                                -lleveldb -lspdlog -lfmt -letcd-cpp-api 
                                -lcpprest -lcurl /usr/local/lib/libjsoncpp.so)


add_executable(${test_client} ${client_src_files} ${proto_srcs})
target_link_libraries(${test_client} -lbrpc -lprotobuf -lgflags -lssl -lcrypto 
                                -lleveldb -lspdlog -lfmt -letcd-cpp-api 
                                -lcpprest -lcurl /usr/local/lib/libjsoncpp.so)
                                
# 6. 设置头文件默认搜索路径
include_directories(${CMAKE_CURRENT_BINARY_DIR})
include_directories(${common_path})
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/../third)
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/source)

file(COPY ${CMAKE_CURRENT_SOURCE_DIR}/test/16k.pcm 
          DESTINATION  ${CMAKE_CURRENT_BINARY_DIR})


#8. 设置安装路径
# INSTALL(TARGETS main RUNTIME DESTINATION bin)